73 NOAA reference stations · Nov 10, 2026 · measured, not modelled

Soil temperature by depth: 2, 4 and 8 inches

Median at 4 inches across the stations51.5°F2 inches: 50.2°F · 8 inches: 52.7°F (medians). Each row is a station's latest full day: the average of its hourly probe readings at 5, 10, 20 and 50 cm. Readings that fail a plausibility check are dropped.

Measured soil temperature by depth, Des Moines 17 E, IA

°F, daily average of hourly readings at each depth, last 30 days.

40°50°60°70°Oct 12Oct 19Oct 26Nov 2Nov 98 in4 in2 in
40°50°60°70°Oct 12Oct 22Nov 18 in4 in2 in
Source: NOAA U.S. Climate Reference Network station Neal Smith NWR (NOAA Station Site) (WBAN 54902), hourly data.

Every station, latest day

Sort by any depth. Days are local standard time at the station.

NOAA reference stationDay2 in (5 cm)4 in (10 cm)8 in (20 cm)20 in (50 cm)
Kenai 29 ENE, AKNov 1032.6°F33.0°F34.1°F37.1°F
Selma 13 WNW, ALNov 1060.5°F62.3°F64.3°F65.9°F
Batesville 8 WNW, ARNov 1057.3°F57.7°F56.9°F60.4°F
Elgin 5 S, AZNov 1060.0°F59.3°F61.2°F63.3°F
Merced 23 WSW, CANov 1058.5°F58.9°F60.0°F60.7°F
Redding 12 WNW, CANov 1061.2°F62.1°F62.6°F62.0°F
Santa Barbara 11 W, CANov 1060.4°F61.1°F62.9°F65.5°F
Yosemite Village 12 W, CANov 1047.0°F50.1°F47.3°F49.7°F
Cortez 8 SE, CONov 1042.8°F43.5°F44.0°F44.9°F
Dinosaur 2 E, CONov 1043.3°F43.8°F45.2°F48.6°F
La Junta 17 WSW, CONov 1048.4°F49.5°F51.0°F53.9°F
Montrose 11 ENE, CONov 1039.5°F40.7°F41.8°F43.5°F
Nunn 7 NNE, CONov 1045.6°F47.1°F48.5°F50.3°F
Brunswick 23 S, GANov 1069.8°F72.4°F71.7°F73.9°F
Newton 8 W, GANov 1064.0°F65.4°F66.9°F68.1°F

Which depth matters for which job

In spring the shallow soil is usually warmer than the deeper soil during the day; in autumn the order flips and deeper soil holds summer heat longer. The table shows this every day at NOAA's reference stations, where buried probes are read every hour.

What this site's map and city numbers are

The model values on the map, the city and the ZIP pages are the GFS 0–10 cm layer: one average for the top 4 inches, not a reading at exactly 2 or 4 inches. The measured depths above are what the accuracy check compares that layer with (the mean of the 2 in and 4 in probes).

Data: U.S. Climate Reference Network (USCRN) hourly data, version 2 (soil temperature at 5 cm and 10 cm, air temperature) (NOAA National Centers for Environmental Information (NCEI)).